Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2014 3 7.  Predictions up to the next  30.0 days:

Date(NOAA-19)     Time(NOAA-19)   NOAA-19 Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 03/18/2014   02:47:33   (  13.83, 162.78) 03/18/2014   02:50:04    (  12.64, 157.74)  561.36            151
 03/18/2014   15:24:04   (  17.24, 158.64) 03/18/2014   15:22:31    (  18.10, 154.48)  450.99             93
 03/30/2014   16:33:16   (  22.59, 142.41) 03/30/2014   16:36:41    (  25.05, 137.25)  592.17            205
 03/31/2014   03:49:32   (  22.30, 145.94) 03/31/2014   03:49:38    (  21.26, 141.47)  476.07              6
 03/31/2014   16:25:45   (  10.03, 142.15) 03/31/2014   16:22:08    (   9.31, 138.22)  438.95            217